Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Chiotellis P"'
Autor:
Derlopa, Sophia, Akras, Stavros, Amram, Philippe, Boumis, Panos, Chiotellis, Alexandros, de Oliveira, Claudia Mendes
We carry out an advanced morpho-kinematic analysis of the Planetary Nebula (PN) NGC 2818, whose complex morphology is described by a basic bipolar component, filamentary structures and a knotty central region. We performed an upgrated 3D Morpho-kinem
Externí odkaz:
http://arxiv.org/abs/2405.00169
Mixed-morphology supernova remnants (MMSNRs) are characterized by a shell-like morphology in the radio and centrally-peaked thermal emission in the X-ray band. The nature of this peculiar class of supernova remnants (SNRs) remains a controversial iss
Externí odkaz:
http://arxiv.org/abs/2403.19743
Autor:
Arias, Maria, Zhou, Ping, Chiotellis, Alexandros, De Breuck, Carlos, Domcek, Vladimir, Boumis, Panos, Vink, Jacco, Derlopa, Sophia, Akras, Stavros
Supernova remnants (SNRs) are profoundly affected by their ambient medium. We present carbon monoxide (CO) observations around two mixed morphology SNRs, VRO 42.05.01 and G 350.0-2.0, that look remarkably similar in continuum radio emission, showing
Externí odkaz:
http://arxiv.org/abs/2402.10763
Autor:
Villagran, Marco A., Gómez, D. O., Velázquez, P. F., Meyer, D. M. -A., Chiotellis, A., Raga, A. C., Esquivel, A., Toledo-Roy, J. C., Vargas-Rojas, K. M., Schneiter, E. M.
Supernova remnants are the nebular leftover of defunct stellar environments, resulting from the interaction between a supernova blastwave and the circumstellar medium shaped by the progenitor throughout its life. They display a large variety of non-s
Externí odkaz:
http://arxiv.org/abs/2309.16410
Autor:
Domček, V., Santisteban, J. V. Hernández, Chiotellis, A., Boumis, P., Vink, J., Akras, S., Souropanis, D., Zhou, P., de Burgos, A.
We present the first optical study of the supernova remnant (SNR) G7.7-3.7, with the aim of determining its evolutionary phase since it has been suggested to be the remnant of SN 386 AD. We obtained narrow-band images in the filters H$\alpha$ + [NII]
Externí odkaz:
http://arxiv.org/abs/2309.01768
Many binary companions to the central stars of planetary nebulae (PNe) are found to be inflated, perhaps indicating that accretion onto the central star might occur during the PN phase. The discovery of a handful of nova eruptions and supersoft X-ray
Externí odkaz:
http://arxiv.org/abs/2302.07292
Autor:
Velazquez, P. F., Meyer, D. M. -A., Chiotellis, A., Cruz-Alvarez, A. E., Schneiter, E. M., Toledo-Roy, J. C., Reynoso, E. M., Esquivel, A.
Thermonuclear and core-collapse supernova remnants (SNRs) are the nebular leftovers of defunct stars. Their morphology and emission properties provide insights into the evolutionary history of the progenitor star. But while some SNRs are spherical, a
Externí odkaz:
http://arxiv.org/abs/2301.03660
Autor:
Spetsieri, Z. T., Boumis, P., Chiotellis, A., Akras, S., Derlopa, S., Shetye, S., Meyer, D. M. A., Bowman, D. M., Gvaramadze, V. V.
Studies on the circumstellar structures around evolved stars provide vital information on the evolution of the parent star and the properties of the local interstellar medium. In this work, we present the discovery and characterization of an optical
Externí odkaz:
http://arxiv.org/abs/2206.14806
Autor:
Meyer, D. M. -A., Velazquez, P. F., Petruk, O., Chiotellis, A., Pohl, M., Camps-Farina, F., Petrov, M., Reynoso, E. M., Toledo-Roy, J. C., Schneiter, E. M., Castellanos-Ramirez, A., Esquivel, A.
Core-collapse supernova remnants are the gaseous nebulae of galactic interstellar media (ISM) formed after the explosive death of massive stars. Their morphology and emission properties depend both on the surrounding circumstellar structure shaped by
Externí odkaz:
http://arxiv.org/abs/2206.14495
Autor:
Souropanis, D., Chiotellis, A., Boumis, P., Chatzikos, M., Akras, S., Piersanti, L., Ruiter, A. J., Ferland, G. J.
Steadily accreting white dwarfs (WDs) are efficient sources of ionization and thus, are able to create extended ionized nebulae in their vicinity. These nebulae represent ideal tools for the detection of accreting WDs, given that in most cases the so
Externí odkaz:
http://arxiv.org/abs/2203.16647